Amines REACH

Ethylmethylamine

CAS Number
624-78-2
EC Number
210-862-1

What is Ethylmethylamine?

Ethylmethylamine (CAS 624-78-2), also referred to as N-methylethylamine, is a secondary aliphatic amine used as a reactive building block and process chemical.

Where is Ethylmethylamine used?

  • Pharmaceutical synthesis: alkylating agent or amine source in the preparation of API intermediates
  • Personal care: conditioning agents and buffering components where pH management is critical
  • Flavor chemistry: construction of nitrogen-containing aroma compounds targeting specific taste profiles
  • Specialty resins and coatings: curing agent or crosslinker
  • Its secondary amine functionality makes it a practical intermediate for synthesizing active compounds and functional additives.

Good to know: Handled under inert conditions due to its volatility and reactive nature. Buyers should confirm concentration and stabilizer content with suppliers before purchase.

Commercial specifications

  • Bulk drums or isotanks
  • Technical grade standard; high-purity grades for pharmaceutical and flavor applications

Other Names (Synonyms)

n-methylethylamine|n-ethyl-n-methylamine|n-methylethanamine|n-ethylmethylamine

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What are the physical properties of Ethylmethylamine?

Melting Point -70.99°C (estimate)
Boiling Point 36.5 °C
Density 0.688 g/mL at 25 °C(lit.)
Flash Point <−30 °F
Appearance clear colorless to light yellow liquid
Color Clear colorless to light yellow
Form Liquid
Vapor Pressure 8.53 psi ( 20 °C)
Refractive Index n 20/D 1.374(lit.)
Log P 0.15

How is Ethylmethylamine classified and handled safely? Learn More

Danger
GHS02· Flammable GHS05· Corrosive GHS06· Toxic GHS07· Irritant

Hazard Statements

H224 Extremely flammable liquid and vapor
H225 Highly Flammable liquid and vapor
H301 Toxic if swallowed
H302 Harmful if swallowed

Precautionary Statements

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment.

Which trade and regulatory codes apply to Ethylmethylamine?

HS Code 29211990
UN Number 2733
ADR Class 3
Packing Group I
Storage Class 3 - Flammable liquids
WGK (Germany) 2
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